/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:18:57,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:18:57,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:18:57,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:18:57,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:18:57,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:18:57,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:18:57,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:18:57,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:18:57,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:18:57,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:18:57,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:18:57,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:18:57,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:18:57,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:18:57,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:18:57,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:18:57,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:18:57,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:18:57,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:18:57,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:18:57,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:18:57,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:18:57,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:18:57,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:18:57,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:18:57,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:18:57,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:18:57,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:18:57,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:18:57,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:18:57,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:18:57,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:18:57,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:18:57,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:18:57,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:18:57,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:18:57,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:18:57,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:18:57,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:18:57,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:18:57,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 12:18:57,221 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:18:57,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:18:57,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:18:57,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:18:57,224 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:18:57,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:18:57,225 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:18:57,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:18:57,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:18:57,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:18:57,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:18:57,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:18:57,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:18:57,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:18:57,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:18:57,228 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:18:57,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:18:57,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:18:57,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:18:57,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:18:57,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:18:57,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:18:57,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:18:57,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:18:57,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:18:57,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:18:57,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:18:57,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:18:57,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:18:57,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:18:57,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:18:57,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:18:57,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:18:57,708 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:18:57,709 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:18:57,710 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product59.cil.c [2020-09-21 12:18:57,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f0fbd1f4/dc61760118584b42bbf3950e921d4ff6/FLAG48771667a [2020-09-21 12:18:58,401 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:18:58,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product59.cil.c [2020-09-21 12:18:58,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f0fbd1f4/dc61760118584b42bbf3950e921d4ff6/FLAG48771667a [2020-09-21 12:18:58,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3f0fbd1f4/dc61760118584b42bbf3950e921d4ff6 [2020-09-21 12:18:58,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:18:58,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:18:58,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:18:58,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:18:58,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:18:58,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:18:58" (1/1) ... [2020-09-21 12:18:58,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4700e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:58, skipping insertion in model container [2020-09-21 12:18:58,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:18:58" (1/1) ... [2020-09-21 12:18:58,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:18:58,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:18:59,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:18:59,285 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:18:59,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:18:59,444 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:18:59,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59 WrapperNode [2020-09-21 12:18:59,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:18:59,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:18:59,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:18:59,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:18:59,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59" (1/1) ... [2020-09-21 12:18:59,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59" (1/1) ... [2020-09-21 12:18:59,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59" (1/1) ... [2020-09-21 12:18:59,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59" (1/1) ... [2020-09-21 12:18:59,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59" (1/1) ... [2020-09-21 12:18:59,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59" (1/1) ... [2020-09-21 12:18:59,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59" (1/1) ... [2020-09-21 12:18:59,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:18:59,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:18:59,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:18:59,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:18:59,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:18:59,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:18:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:18:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 12:18:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 12:18:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 12:18:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 12:18:59,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 12:18:59,625 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 12:18:59,626 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 12:18:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 12:18:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-21 12:18:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 12:18:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 12:18:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 12:18:59,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:18:59,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 12:18:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 12:18:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 12:18:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 12:18:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 12:18:59,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 12:18:59,630 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 12:18:59,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 12:18:59,631 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-21 12:18:59,633 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-21 12:18:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 12:18:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 12:18:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 12:18:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 12:18:59,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 12:18:59,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 12:18:59,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 12:18:59,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-21 12:18:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-21 12:18:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-21 12:18:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 12:18:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 12:18:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 12:18:59,636 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 12:18:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:18:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 12:18:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 12:18:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 12:18:59,637 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 12:18:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:18:59,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:18:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 12:18:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 12:18:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 12:18:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 12:18:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 12:18:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 12:18:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 12:18:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 12:18:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-21 12:18:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:18:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-21 12:18:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 12:18:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 12:18:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 12:18:59,640 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 12:18:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 12:18:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 12:18:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 12:18:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-21 12:18:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-21 12:18:59,641 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 12:18:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 12:18:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 12:18:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 12:18:59,642 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-21 12:18:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-21 12:18:59,643 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 12:18:59,644 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 12:18:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 12:18:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 12:18:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 12:18:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 12:18:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 12:18:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:18:59,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 12:18:59,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 12:18:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:18:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 12:18:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 12:18:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:18:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 12:18:59,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 12:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 12:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 12:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-21 12:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 12:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 12:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 12:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 12:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 12:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 12:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 12:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 12:18:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:19:00,708 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:19:00,708 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 12:19:00,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:19:00 BoogieIcfgContainer [2020-09-21 12:19:00,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:19:00,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:19:00,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:19:00,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:19:00,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:18:58" (1/3) ... [2020-09-21 12:19:00,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e19c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:19:00, skipping insertion in model container [2020-09-21 12:19:00,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:18:59" (2/3) ... [2020-09-21 12:19:00,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50e19c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:19:00, skipping insertion in model container [2020-09-21 12:19:00,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:19:00" (3/3) ... [2020-09-21 12:19:00,727 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2020-09-21 12:19:00,737 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:19:00,750 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:19:00,772 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:19:00,805 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:19:00,805 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:19:00,805 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:19:00,806 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:19:00,806 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:19:00,806 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:19:00,806 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:19:00,806 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:19:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-09-21 12:19:00,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-21 12:19:00,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:00,849 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:19:00,849 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:19:00,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:00,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1133755032, now seen corresponding path program 1 times [2020-09-21 12:19:00,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:00,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175003997] [2020-09-21 12:19:00,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:01,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:01,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-21 12:19:02,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:19:02,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-09-21 12:19:02,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-21 12:19:02,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-21 12:19:02,728 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:19:02,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:02,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:02,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:02,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-21 12:19:02,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:02,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:02,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:19:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:02,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:02,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:02,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:02,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:02,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:02,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:19:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:02,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:02,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:02,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:02,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:02,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:02,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:02,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:02,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:02,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:02,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:02,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:19:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:02,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:02,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:02,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:02,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:19:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:02,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:02,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:02,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:02,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:02,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:19:02,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:19:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:02,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:02,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:02,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:19:02,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:19:02,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 12:19:02,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:02,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:02,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:02,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:02,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:02,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:02,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 12:19:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:02,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:02,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:02,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:02,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:02,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:19:02,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:02,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:02,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:02,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:02,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:02,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:19:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:03,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:03,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:03,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:03,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:03,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:03,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:03,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:03,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:03,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:03,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:03,024 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:19:03,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175003997] [2020-09-21 12:19:03,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:19:03,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:19:03,030 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365778427] [2020-09-21 12:19:03,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:19:03,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:19:03,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:19:03,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:19:03,062 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 4 states. [2020-09-21 12:19:04,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:19:04,411 INFO L93 Difference]: Finished difference Result 350 states and 444 transitions. [2020-09-21 12:19:04,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:19:04,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2020-09-21 12:19:04,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:19:04,433 INFO L225 Difference]: With dead ends: 350 [2020-09-21 12:19:04,433 INFO L226 Difference]: Without dead ends: 192 [2020-09-21 12:19:04,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:19:04,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-21 12:19:04,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 159. [2020-09-21 12:19:04,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-09-21 12:19:04,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 186 transitions. [2020-09-21 12:19:04,579 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 186 transitions. Word has length 59 [2020-09-21 12:19:04,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:19:04,580 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 186 transitions. [2020-09-21 12:19:04,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:19:04,580 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 186 transitions. [2020-09-21 12:19:04,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-21 12:19:04,593 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:04,593 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:19:04,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:19:04,593 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:19:04,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:04,594 INFO L82 PathProgramCache]: Analyzing trace with hash -138893135, now seen corresponding path program 1 times [2020-09-21 12:19:04,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:04,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32312105] [2020-09-21 12:19:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:04,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:04,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:05,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:05,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-21 12:19:05,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:19:05,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1016 [2020-09-21 12:19:05,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:05,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:05,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-21 12:19:05,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:19:05,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:05,967 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:19:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:05,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:06,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:19:06,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:06,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:19:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:06,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:06,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:06,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:06,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:06,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:19:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:06,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:06,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:19:06,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:06,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:06,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:06,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:06,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:06,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:06,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:19:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:06,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:19:06,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:06,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:06,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:19:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:06,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:06,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:06,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:06,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:06,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 12:19:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:06,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:06,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:06,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 12:19:06,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:06,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:06,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:06,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:06,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:06,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 12:19:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:06,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:06,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:06,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:06,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:06,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:19:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:06,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:06,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:06,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:06,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:06,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:06,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:06,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:06,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:06,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:06,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:19:06,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [32312105] [2020-09-21 12:19:06,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:19:06,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:19:06,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960499614] [2020-09-21 12:19:06,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:19:06,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:19:06,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:19:06,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:19:06,227 INFO L87 Difference]: Start difference. First operand 159 states and 186 transitions. Second operand 5 states. [2020-09-21 12:19:06,966 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:19:08,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:19:08,122 INFO L93 Difference]: Finished difference Result 289 states and 348 transitions. [2020-09-21 12:19:08,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:19:08,123 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2020-09-21 12:19:08,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:19:08,129 INFO L225 Difference]: With dead ends: 289 [2020-09-21 12:19:08,130 INFO L226 Difference]: Without dead ends: 182 [2020-09-21 12:19:08,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:19:08,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-09-21 12:19:08,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 150. [2020-09-21 12:19:08,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-21 12:19:08,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 174 transitions. [2020-09-21 12:19:08,183 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 174 transitions. Word has length 60 [2020-09-21 12:19:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:19:08,184 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 174 transitions. [2020-09-21 12:19:08,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:19:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 174 transitions. [2020-09-21 12:19:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 12:19:08,186 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:08,186 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:19:08,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:19:08,186 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:19:08,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:08,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1740604635, now seen corresponding path program 1 times [2020-09-21 12:19:08,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:08,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845574445] [2020-09-21 12:19:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:08,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:08,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 12:19:09,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:19:09,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-09-21 12:19:09,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:19:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-21 12:19:09,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:19:09,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:09,635 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:19:09,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:09,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:19:09,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:09,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:09,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:19:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:09,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:09,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:09,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:09,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:09,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:19:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:09,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:09,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:09,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:09,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:09,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:09,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:09,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:09,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:09,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:19:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:09,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:09,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:09,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:09,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:19:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:09,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:09,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:09,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:09,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:19:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:09,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:09,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:09,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:09,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:09,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:09,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:09,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:09,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 12:19:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:09,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:19:09,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:09,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:09,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-09-21 12:19:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:09,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:09,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:09,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:09,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:09,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:19:09,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:09,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:19:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:09,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:09,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:19:09,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845574445] [2020-09-21 12:19:09,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:19:09,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:19:09,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281538324] [2020-09-21 12:19:09,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:19:09,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:19:09,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:19:09,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:19:09,871 INFO L87 Difference]: Start difference. First operand 150 states and 174 transitions. Second operand 8 states. [2020-09-21 12:19:10,282 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:19:11,096 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:19:12,242 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:19:12,569 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:19:13,162 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:19:13,484 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-21 12:19:14,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:19:14,026 INFO L93 Difference]: Finished difference Result 368 states and 463 transitions. [2020-09-21 12:19:14,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 12:19:14,027 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2020-09-21 12:19:14,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:19:14,031 INFO L225 Difference]: With dead ends: 368 [2020-09-21 12:19:14,031 INFO L226 Difference]: Without dead ends: 246 [2020-09-21 12:19:14,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:19:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-09-21 12:19:14,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 214. [2020-09-21 12:19:14,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-09-21 12:19:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 252 transitions. [2020-09-21 12:19:14,086 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 252 transitions. Word has length 64 [2020-09-21 12:19:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:19:14,087 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 252 transitions. [2020-09-21 12:19:14,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:19:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 252 transitions. [2020-09-21 12:19:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-21 12:19:14,088 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:14,089 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:19:14,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:19:14,089 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:19:14,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:14,090 INFO L82 PathProgramCache]: Analyzing trace with hash -73914297, now seen corresponding path program 1 times [2020-09-21 12:19:14,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:14,090 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279985927] [2020-09-21 12:19:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:14,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:14,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:14,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 12:19:14,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:14,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-09-21 12:19:14,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:14,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:19:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-09-21 12:19:14,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:19:14,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:15,247 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:19:15,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:15,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 12:19:15,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:15,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:19:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:15,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:15,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:19:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:15,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:15,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:15,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:15,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:19:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:15,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:15,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:19:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:15,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:15,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:19:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:15,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:15,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:15,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:19:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:19:15,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-21 12:19:15,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:19:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:19:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:19:15,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:19:15,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 12:19:15,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:19:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:19:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:19:15,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:19:15,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 12:19:15,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:19:15,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:19:15,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:19:15,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:15,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:19:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:19:15,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:19:15,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 12:19:15,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:19:15,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:15,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:15,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:15,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:15,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:15,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:15,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 12:19:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:15,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:15,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:15,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:15,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-09-21 12:19:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:15,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:15,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:15,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:15,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:15,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:15,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:15,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:15,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:15,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:15,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:19:15,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279985927] [2020-09-21 12:19:15,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:19:15,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 12:19:15,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548635115] [2020-09-21 12:19:15,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 12:19:15,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:19:15,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 12:19:15,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:19:15,838 INFO L87 Difference]: Start difference. First operand 214 states and 252 transitions. Second operand 9 states. [2020-09-21 12:19:17,173 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:19:17,442 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-21 12:19:17,801 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:19:18,146 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:19:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:19:19,081 INFO L93 Difference]: Finished difference Result 456 states and 581 transitions. [2020-09-21 12:19:19,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 12:19:19,082 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2020-09-21 12:19:19,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:19:19,087 INFO L225 Difference]: With dead ends: 456 [2020-09-21 12:19:19,087 INFO L226 Difference]: Without dead ends: 270 [2020-09-21 12:19:19,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:19:19,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-21 12:19:19,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 228. [2020-09-21 12:19:19,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-21 12:19:19,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 268 transitions. [2020-09-21 12:19:19,139 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 268 transitions. Word has length 107 [2020-09-21 12:19:19,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:19:19,139 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 268 transitions. [2020-09-21 12:19:19,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 12:19:19,140 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 268 transitions. [2020-09-21 12:19:19,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-21 12:19:19,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:19,141 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:19:19,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:19:19,142 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:19:19,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:19,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1854358405, now seen corresponding path program 1 times [2020-09-21 12:19:19,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:19,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95537387] [2020-09-21 12:19:19,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:19,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:19,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:19,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 12:19:19,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:19,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-09-21 12:19:19,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:19:19,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-21 12:19:19,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:19,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,172 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:19:20,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:20,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-21 12:19:20,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:19:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:20,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:20,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:19:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:20,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:20,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:20,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:19:20,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:19:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:20,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:20,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:19:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:20,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:20,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:20,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:19:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:20,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:20,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:20,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:20,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:19:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:19:20,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-21 12:19:20,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:19:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:19:20,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:20,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:20,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:19:20,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-21 12:19:20,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:19:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:19:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:19:20,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-21 12:19:20,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:19:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 12:19:20,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:20,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:19:20,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:19:20,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:19:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:20,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:19:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:19:20,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:19:20,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 12:19:20,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:20,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:19:20,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:20,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:20,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:20,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:20,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:20,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:20,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:20,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:20,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 12:19:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:20,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:20,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:20,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:20,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-09-21 12:19:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:20,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:20,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:20,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:20,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:20,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:20,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:20,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:20,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:20,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:20,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:19:20,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95537387] [2020-09-21 12:19:20,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:19:20,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 12:19:20,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113610427] [2020-09-21 12:19:20,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:19:20,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:19:20,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:19:20,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:19:20,759 INFO L87 Difference]: Start difference. First operand 228 states and 268 transitions. Second operand 8 states. [2020-09-21 12:19:21,936 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:19:22,279 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:19:22,592 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:19:23,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:19:23,618 INFO L93 Difference]: Finished difference Result 475 states and 602 transitions. [2020-09-21 12:19:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:19:23,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2020-09-21 12:19:23,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:19:23,626 INFO L225 Difference]: With dead ends: 475 [2020-09-21 12:19:23,628 INFO L226 Difference]: Without dead ends: 275 [2020-09-21 12:19:23,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:19:23,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-09-21 12:19:23,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 232. [2020-09-21 12:19:23,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-09-21 12:19:23,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 272 transitions. [2020-09-21 12:19:23,696 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 272 transitions. Word has length 107 [2020-09-21 12:19:23,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:19:23,696 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 272 transitions. [2020-09-21 12:19:23,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:19:23,697 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 272 transitions. [2020-09-21 12:19:23,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-21 12:19:23,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:23,698 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:19:23,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:19:23,699 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:19:23,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:23,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1613818276, now seen corresponding path program 1 times [2020-09-21 12:19:23,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:23,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033064551] [2020-09-21 12:19:23,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:23,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:24,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:24,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-09-21 12:19:24,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:24,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:19:24,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:24,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:19:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-21 12:19:24,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,036 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:19:25,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:25,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-21 12:19:25,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:19:25,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:19:25,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:25,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:25,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:19:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:19:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:25,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:25,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:19:25,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:25,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:19:25,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:25,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:19:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:25,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:25,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:19:25,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:19:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:25,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:25,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:25,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:19:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:25,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:19:25,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:19:25,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:25,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:25,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:25,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:25,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:25,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-09-21 12:19:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:19:25,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-21 12:19:25,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 12:19:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:19:25,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:19:25,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 12:19:25,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:19:25,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:19:25,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:19:25,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:19:25,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:19:25,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:25,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:19:25,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:25,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:19:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:19:25,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-21 12:19:25,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 12:19:25,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:19:25,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:25,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:25,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:25,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:25,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:25,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:25,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:25,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:25,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:25,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-09-21 12:19:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:25,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:25,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:25,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:25,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:25,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-09-21 12:19:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:25,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:25,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:25,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:25,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:25,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:25,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:25,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:25,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:25,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:25,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:19:25,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033064551] [2020-09-21 12:19:25,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:19:25,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 12:19:25,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7340307] [2020-09-21 12:19:25,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:19:25,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:19:25,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:19:25,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:19:25,584 INFO L87 Difference]: Start difference. First operand 232 states and 272 transitions. Second operand 7 states. [2020-09-21 12:19:25,978 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:19:26,619 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:19:29,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:19:29,017 INFO L93 Difference]: Finished difference Result 677 states and 867 transitions. [2020-09-21 12:19:29,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 12:19:29,018 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-09-21 12:19:29,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:19:29,022 INFO L225 Difference]: With dead ends: 677 [2020-09-21 12:19:29,022 INFO L226 Difference]: Without dead ends: 473 [2020-09-21 12:19:29,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:19:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-21 12:19:29,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 431. [2020-09-21 12:19:29,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-09-21 12:19:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 518 transitions. [2020-09-21 12:19:29,091 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 518 transitions. Word has length 107 [2020-09-21 12:19:29,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:19:29,091 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 518 transitions. [2020-09-21 12:19:29,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:19:29,092 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 518 transitions. [2020-09-21 12:19:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-09-21 12:19:29,093 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:29,093 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:19:29,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:19:29,094 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:19:29,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:29,094 INFO L82 PathProgramCache]: Analyzing trace with hash 608509898, now seen corresponding path program 1 times [2020-09-21 12:19:29,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:29,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363869818] [2020-09-21 12:19:29,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:29,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:29,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-21 12:19:30,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:19:30,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:19:30,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:19:30,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-21 12:19:30,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 12:19:30,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:30,485 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:19:30,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:30,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 12:19:30,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:30,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:19:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:30,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:30,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:30,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:19:30,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:30,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:30,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:30,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:30,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:30,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:30,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:19:30,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:30,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:30,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:30,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:19:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:30,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:30,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:19:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:30,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:30,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:30,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:19:30,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-21 12:19:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:30,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:19:30,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:19:30,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:30,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:30,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 12:19:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:19:30,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 12:19:30,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:19:30,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-21 12:19:30,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:19:30,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-21 12:19:30,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:30,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 12:19:30,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:30,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:19:30,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:19:30,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:30,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:19:30,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:30,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:19:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:30,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:30,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 12:19:30,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:19:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:19:30,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-21 12:19:30,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 12:19:30,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:30,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:19:30,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:30,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:30,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:30,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:30,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:30,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-09-21 12:19:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:30,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:19:30,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:19:30,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:30,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:30,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:30,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-21 12:19:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:30,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:30,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:30,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:30,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:30,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:30,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:30,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:30,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 12:19:31,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363869818] [2020-09-21 12:19:31,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:19:31,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 12:19:31,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020774659] [2020-09-21 12:19:31,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:19:31,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:19:31,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:19:31,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:19:31,003 INFO L87 Difference]: Start difference. First operand 431 states and 518 transitions. Second operand 12 states. [2020-09-21 12:19:31,628 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 12:19:32,740 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:19:33,096 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 12:19:33,551 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:19:34,660 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 12:19:35,032 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:19:35,366 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 12:19:37,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:19:37,117 INFO L93 Difference]: Finished difference Result 873 states and 1117 transitions. [2020-09-21 12:19:37,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-21 12:19:37,118 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-09-21 12:19:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:19:37,123 INFO L225 Difference]: With dead ends: 873 [2020-09-21 12:19:37,123 INFO L226 Difference]: Without dead ends: 545 [2020-09-21 12:19:37,125 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=253, Invalid=617, Unknown=0, NotChecked=0, Total=870 [2020-09-21 12:19:37,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-09-21 12:19:37,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 482. [2020-09-21 12:19:37,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-21 12:19:37,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 584 transitions. [2020-09-21 12:19:37,209 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 584 transitions. Word has length 111 [2020-09-21 12:19:37,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:19:37,209 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 584 transitions. [2020-09-21 12:19:37,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 12:19:37,210 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 584 transitions. [2020-09-21 12:19:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-09-21 12:19:37,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:37,212 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:19:37,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:19:37,213 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:19:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:37,213 INFO L82 PathProgramCache]: Analyzing trace with hash -197560236, now seen corresponding path program 1 times [2020-09-21 12:19:37,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:37,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465793896] [2020-09-21 12:19:37,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:37,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:37,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-21 12:19:38,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:19:38,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-09-21 12:19:38,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-21 12:19:38,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-21 12:19:38,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,629 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:19:38,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:38,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 12:19:38,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:19:38,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:38,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:38,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:19:38,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:38,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:38,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:38,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:38,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:19:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:38,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:38,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:19:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:38,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:38,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:19:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:38,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:38,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:19:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-21 12:19:38,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 12:19:38,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:38,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 12:19:38,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:38,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:38,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:38,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:38,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:19:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:19:38,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 12:19:38,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-21 12:19:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:19:38,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:19:38,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:19:38,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:19:38,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:19:38,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:38,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:38,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:19:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:38,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:38,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:38,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:19:38,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:38,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:19:38,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:38,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:38,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:38,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:38,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:39,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:19:39,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:39,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:39,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:39,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:39,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:39,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:39,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:39,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:39,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:39,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:39,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:39,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:39,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:39,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:39,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:39,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 12:19:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:19:39,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:19:39,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:39,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:19:39,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:39,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:39,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:39,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:39,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:39,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:39,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-21 12:19:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:39,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:19:39,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:19:39,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:39,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:39,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:39,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:39,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:39,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-21 12:19:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:39,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:19:39,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:39,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:39,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:39,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:39,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-21 12:19:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:39,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:39,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:39,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:39,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:39,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:39,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-21 12:19:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:39,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:39,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:39,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:39,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:39,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:39,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:39,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:19:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:39,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-21 12:19:39,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465793896] [2020-09-21 12:19:39,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:19:39,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:19:39,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478102252] [2020-09-21 12:19:39,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:19:39,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:19:39,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:19:39,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:19:39,139 INFO L87 Difference]: Start difference. First operand 482 states and 584 transitions. Second operand 8 states. [2020-09-21 12:19:39,624 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:19:41,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:19:41,833 INFO L93 Difference]: Finished difference Result 1151 states and 1454 transitions. [2020-09-21 12:19:41,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 12:19:41,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-09-21 12:19:41,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:19:41,839 INFO L225 Difference]: With dead ends: 1151 [2020-09-21 12:19:41,839 INFO L226 Difference]: Without dead ends: 697 [2020-09-21 12:19:41,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-09-21 12:19:41,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-09-21 12:19:41,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 617. [2020-09-21 12:19:41,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-09-21 12:19:41,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 748 transitions. [2020-09-21 12:19:41,958 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 748 transitions. Word has length 146 [2020-09-21 12:19:41,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:19:41,959 INFO L479 AbstractCegarLoop]: Abstraction has 617 states and 748 transitions. [2020-09-21 12:19:41,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:19:41,959 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 748 transitions. [2020-09-21 12:19:41,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-21 12:19:41,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:19:41,963 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:19:41,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:19:41,963 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:19:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:19:41,964 INFO L82 PathProgramCache]: Analyzing trace with hash 866799866, now seen corresponding path program 1 times [2020-09-21 12:19:41,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:19:41,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1115001703] [2020-09-21 12:19:41,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:19:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:42,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:42,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:42,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:43,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:43,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:43,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 247 [2020-09-21 12:19:43,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:19:43,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1486 [2020-09-21 12:19:43,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:19:43,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-21 12:19:43,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-09-21 12:19:43,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:43,812 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 12:19:43,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:43,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:43,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:43,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:43,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:43,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-21 12:19:43,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:43,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:43,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:43,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:43,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:43,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:19:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:43,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:43,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:43,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:43,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:43,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:43,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:43,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:43,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:43,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:19:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:43,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:43,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:43,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:43,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:43,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:43,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:43,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:43,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:43,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:43,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:43,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:43,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:43,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:43,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:43,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:43,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:43,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:43,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 12:19:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:43,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:43,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:43,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:43,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:43,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:43,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:43,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:43,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:43,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:19:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:43,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:43,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:43,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:43,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:43,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:43,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:43,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:43,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:43,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 12:19:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:43,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:43,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:43,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:43,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:43,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:43,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:43,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:43,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:43,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 12:19:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:43,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-21 12:19:44,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 12:19:44,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-21 12:19:44,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:44,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:44,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:44,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:44,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:19:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 12:19:44,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-21 12:19:44,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-21 12:19:44,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 12:19:44,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 12:19:44,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-21 12:19:44,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 12:19:44,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:19:44,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:19:44,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:44,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:19:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 12:19:44,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:19:44,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:19:44,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 12:19:44,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:44,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:44,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:44,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 12:19:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:44,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:44,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 12:19:44,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:44,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-21 12:19:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 12:19:44,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:19:44,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 12:19:44,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:44,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:44,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:19:44,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-21 12:19:44,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:44,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:19:44,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:19:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:19:44,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:19:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:44,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:19:44,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:19:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 12:19:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:19:44,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-21 12:19:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:44,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:19:44,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:44,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-21 12:19:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-21 12:19:44,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 12:19:44,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-21 12:19:44,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-21 12:19:44,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:19:44,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 12:19:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:44,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:44,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 12:19:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 12:19:44,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:19:44,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 12:19:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:19:44,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:19:44,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:19:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:19:44,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-21 12:19:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:44,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:44,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:44,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-21 12:19:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:19:44,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:19:44,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:19:44,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:19:44,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:19:44,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:19:44,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:19:44,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:19:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:19:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:19:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:19:44,536 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-21 12:19:44,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1115001703] [2020-09-21 12:19:44,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:19:44,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 12:19:44,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007037691] [2020-09-21 12:19:44,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 12:19:44,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:19:44,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 12:19:44,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:19:44,539 INFO L87 Difference]: Start difference. First operand 617 states and 748 transitions. Second operand 12 states. [2020-09-21 12:19:45,122 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-21 12:19:45,938 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:19:46,343 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 12:19:47,059 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-21 12:19:48,299 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-21 12:19:48,734 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189